Anyone out there with experience converting
an AR15 to full auto M16 using a lightning link
registerd sear? What are the advantages and of course the disadvantges. It certainly seems more reasonable from a cash standpoint.
Thanks in advance

First there is no such thing as a "Lighting link registerd sear".

There is a "Lighting link" and there is a "Registered Sear" two seperate things.

A "lightling link" is a shaped piece of metal. Illegal to install, have.

A Registerd sear is almost a myth now days. If someone is trying to sell you one, please walk away and save yourself some jail time.

The disadvantages of these options is the possiblity of JAIL TIME! It isn't worth it.

Sorry Guzzler, wrong on two counts.  Not only are LL's and DIAS's legal, but readily available.  Expect to pay upwards of $3k for a LL, and $4k plus for a DIAS.  

Was at the range last week and the guy next to me was hammering away with his AR and DIAS.

you can buy them here:

[url]http://subguns.biggerhammer.net/nfaad.cgi[/url]

First off, the sear (DIAS) or lightning link (aka auto-disconnector) MUST be registered.  If they are not registered with BATF as NFA weapons (machineguns), they are illegal to use and for the most part, possess.  If its called a "pre-81 sear", or link its probably not registered and thus not legal.  If its registered, you'll need to complete a BATF form 4, FBI fingerprint cards, get the CLEO signoff, and pay a $200 transfer tax to the Treasury dept. to get it in your hands from an FFL/SOT in your state.

That said, the sear and the link are two different animals.  Sears are currently in the $4k range for just a sear - remember the ones you see in SGN for $175 are NOT legal to use, and could get you ten years in the pokey for just possession of the sear alone.  Thus, there's not really much savings over buying a registered DIAS (drop in auto sear) over registered receiver M16.  Registered DIAS are NOT a myth though - they are available if you know where to look and have $4000-4500 cash redy to go.  Same goes for links.  The link is a small 2-piece of sheet metal that fits in the receiver and automatically pulls the disconnector as the bolt goes into battery.  Both DIAS's and links work well, but DIAS are sturdier and allow for semi auto fire as well as full auto.  Links though are cheaper and a bit flimsy, being about $2500. Occasionally they (links) may stop because of bending of the sheet metal trip paddle.  Not a huge problem, but annoying when you're trying to rip through a beta in one burst.  DIAS's are much more sturdy.

The simplest way though is to get a registered receiver M16.  Considering with both the DIAS and the link, you'll need to get a gun to put it in, much of the savings is lost over a complete non-Colt M16 conversion (SGW, PAWS, BM, etc) which are currently in the $4500-5500 range.

The biggest drawback to DIAS's and links is timing - the timing must be on.  If not, you could have a dangerous situation on your hands.  The other problem with links and sears is that you cannot use a Colt OB LMG kit.  Sure you can use the LMG upper, but not in the open bolt mode.  Finally, I don't think links will work with Ciener .22 or Colt 9mm conversions (DIAS's and registered receiver M16's do though).

The only reason you would see "jail time" is if you had one of them illegally. There is absolutely nothing illegal about owning or using a machine gun, no matter HOW it accomplishes it, as long as the ATF knows about it, has approoved it, and you have paid your tax and have papers to prove it.

The Subguns boards are a great place to get full auto toys. That was the link posted earlier.

RMCLARK, I'd suggest getting a registered receiver. Lightning links are a lot of fun, but the $2500 to buy one legally is a lot of money for something that literally costs about $5 in materials. DIAS are much better since they give you select fire and a lot more reliability, but are still not the best. For that get a registered receiver. $5000 and it lets you have an actual "M16".

Guzzler were you born this stupid, or did it take years of intense training?

I just wanted to add this link for you to check out. Real good information on the lightning link.

[url]http://www.members.home.net/gryphon223/ar15/fullauto/4.html[/url]

It would be within your inalienable 2nd Amendment rights to own what you want, wherever you want.

It is also within your inalienable 1st Amendment rights to possess this valuable information:

[url]www.wetworx.com/lightning.html[/url]
[url]www.wetworx.com/ar15md.shtml[/url]

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